Look out for a myriad of electrified wire traps in the office. Diffuse the traps with Telekinesis and make your way to the eastern side of the room. On the side of the desk in the office, look for an "intriguing" switch that opens a glass panel just south of the desk, revealing the Nitroglycerin needed for Kyburz's bomb. The intriguing switch also drops a turret into the room, in front of the doorway you used to enter. Zap it!

There's also a weapon upgrade station in the office that you should make use of before leaving the office. On your way out, look for a crawlspace next to the pair of turrets just outside the office door. The crawlspace leads to a semi-hidden area with an audio diary. Grab it, then backtrack to the Core.